7.5

CVE-2016-9179: lynx Improper Input Validation

Modified
AliasesMGASA-2017-0052SUSE-SU-2017:0599-1UBUNTU-CVE-2016-9179
Published 22-12-2016Last modified 06-08-2024

Vulnerability summary

CVE-2016-9179 is a high (CVSS 7.5) Improper Input Validation vulnerability in lynx. EPSS estimates a 2.00% chance of exploitation in the next 30 days, higher than 80.8% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
2.00%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 4

Timeline

  1. 22-12-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

lynx: It was found that Lynx doesn't parse the authority component of the URL correctly when the host name part ends with '?', and could instead be tricked into connecting to a different host.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

2.00%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

Increase +0.02 pp

From 1.99% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard3 products
  • lynxAll versions (No fix recorded)
  • lynx-docAll versions (No fix recorded)
  • lynx-langAll versions (No fix recorded)
Wolfi3 products
  • lynxAll versions (No fix recorded)
  • lynx-docAll versions (No fix recorded)
  • lynx-langAll versions (No fix recorded)
Debian2 products
  • lynx< 2.8.9dev11-1
  • lynx-cur< 2.8.8dev.12-2+deb7u1
Mageia1 product
  • lynx< 2.8.8-1.rel2.3.1.mga5
Suse1 product
  • lynx&distro=SUSE Linux Enterprise Software Development Kit 11 SP4< 2.8.6-145.1
Ubuntu1 product
  • lynx< 2.8.9dev8-4ubuntu1+esm1

6 vendors · 11 products

References

14 links
Show all 14 references